Traffic-controlling means



l A. L. KAZAS TRAFFI C CONTROLLING MEANS Filed Oct. 25, 1924 INVENTOR a m i. K 0;

idatented Aug. 19, 1%26.

nniisn stares masses ANASTASIOS L. KAZAS, OF MODESTO, CALIFORHIA.

TRAFFIC-CSNTROLLING MEANS.

Application filed October 25, 1924. Serial No. 745,887.

This invention relates to the control of vehicular trafiic in city streets, with partic ular reference to the control of the speed of motor vehicles.

l -fy principal object is to provide a method, or system for the purpose which will aid in the work of the traiiic ofiicers, to positively prevent speeding. of the vehicles through the streets, especially at corners and intersections, and will necessitate the vehicles moving in either direction being slowed down to within the legal speed limit allowed before either a right or left hand turn at a corner or intersection can be made.

As a result in any city equipped with my system. pedestrians are better'safe-auarded from careless drivers than is now the case. especially at street corners: the danger of collisions at intersections due to excessive speed will be materially lessened; and consequently the damage insurance rates may be lowered considerably. I

Another object of my invention is to provi de a svstem'in which the installation of the physical features is a simple matter whose cost is negligible compared to the great benefits and ultimate savings effected thereby.

A "urther object of the invention is to produce a simple and inexpensive device and yet one which will be exceedingly effective for the pur ose for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawings similar characters of reference indicate corresponding parts in the several views:

Fin. 1 is a diagrammatic and fragmentary street plan showing the features of my system thereon.

Fig. 2 is an enlarged longitudinal section of a traflic obstruction or speed interrupting element.

Fig. 3 is a cross section of the same.

Referring now more particularly to the characters of reference on the drawings. the numeral 1 denotes a main highway leading to the city limits 2. at which point a regular street 3, usually wider than the highway. besins and forms a continuation of the highway, with cross streets L at intervals. each of course forming an intersection 5 with the street 8.

The above of course is merely a typical arrangement found in any town or city, and

which I make use of in installing my sys-i tem.

The latter comprises first a raise 6 or up wardly projectingspeed interrupting member disposed transversely of the pavement of the highway just outside the city limitspand extending. practically from side to side thereof. This member is preferably of concrete having a' reinforcing member 7 of steel or the like embedded therein. If the pavement is of concrete this member may be made integral with the pavement when the latter is laid. or if the pavement is of other material said member would project a certain distance below the level of the roadway so as to befirmly anchored with respect thereto, as shown in Figs. 2 and 3.

The upper face of the raise 6 is curved longitudinally of the road and at its center projects above the road surface sufiiciently so that a vehicle whose wheels strike the same at greater than a certain speed will be subjected to a severe shock. The end edges of the member 6 are also rounded off so that no damage will be done to any wheels which may happen topass across along side of the same. To warn drivers approaching the town along the road that my system is installed at such town, a warning sign 8 having a suit-able legend is placed adjacent the high way a sutlicient distance beyond the initial speed interrupting member to enable the driver to slow down to the necessary speed to negotiate said member safely by the time he reaches the same.

Similar interruptions or raises 9 are placed in the streets 3 and 4 at each intersection or corner, these being located on the right hand side of the street adjacent each near corner, and extend from the center line 10 of the street toward the adjacent curb, terminating a sunicient distance from said curb to allow room for parking space and the like. Each member is set back from the adjacent curb line of'the cross street so as not to interfere with pedestrian traflic across the street at the corners.

By means of this arrangement it will be seen that a vehicle when near a cross street must be travelling at a reasonably slow speed before attempting to either cross said street or make a right or left hand turn from one into the other.

When once a driver has negotiated an interruption he can then cross or make a turn again engage an interruption until-he---ar rives at the next corner and s\on.-.

From the foregoing description it Will be readily seen that I have produced suchia-a device as substantially fulfills the objects of the invention as set forth-herein? While this specification sets forth in detail itheepresent and 'ipreferred c'onstruction of the device, still in practice such deviations' fromesuchizdetatl imay be resorted to as do not-lit'ormfa depanture' fromnthe' spirit of the invent-izon,.+as defined by the appended'cl'aimsw Having thus described imy inventiontwhat Iclaim as :new andr useful and" desire -to-*se'- cure-:- by Letters Patent is r q 1. A LHIEBJDS for controlling the speed" -'of' vehicular traffic in: streets "comprising a rigid 1 element projecting abbve' the street level and disposed. l across? the: path oi movement 5 of traffic; said element being formed of road building material, and a metal member em bedded longitudinally in said element and projecting to the top thereof for substantially the entire length of said element.

2. A means for controlling the speed of vehicular-traflic in streets, comprising a rigid element projecting above the street level 'andextending partially across the street adjacent each corner in the .pathflof movement of trafiic toward such corner; said element being formed-of road building material 'and having its surface-above the street level rounded transversely, a metal member embedded in said element and extending longitudinally;thereof to the-top of the elem'ent','anda transverse head along the upper end of said member following the contour of the element and lying flush therewith.

In testimony; whereof I afiiz; my signature-.-=

ANASTASIOS L. KAZAS; 

